Quick and Easy Buying Guide
Carat weight: 1 carat = 200 milligrams = 6.5 mm diameter. Doubling weight doesn't double diameter.
Diamond clarity: FL/IF/VVS/VS = super expensive, near perfect. SI = best value if you can check a photo for obvious inclusions (defects).
Color: D-G = colorless, expensive, only if you have money to burn. H-J = best value. Can go lower in gold metal settings than white metal.
Cut: Better cut ratings let more light into a diamond, making it sparkle more. Very important property, don't skimp here.
Set a budget and minimum cut (Premium). Go J color for gold and I/H for white metals. Go searching for SI1/SI2 clarity diamonds at James Allen. Pick a diamond with small/no inclusions. Choose a ring setting and buy it risk-free (60-day returns).
2.88 Carat Diamonds
Discerning purchasers of diamonds consider other characteristics of the diamond apart from carat size such as girdle thickness - how big the girdle is can impact on the diameter of a diamond of a certain carat weight. Because diamonds with the carat weight of one or two carats are very very popular, it's common for shops and online stores to raise the prices. You can save money by looking for diamonds which don't have the sizes.
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Proverbs are mental gems gathered in the diamond districts of the mind. William R. Alger .
God forbid that this should be a problem for anyone, but it may be that the diamond, once it actually put on the fiance's hand, may appear to be too big and unwieldy. Make sure to take this into account when you're shopping around.
In the quest for finding the largest diamond possible within a budget, it can be fun to consider famous large diamonds like ashberg diamond, which had a huge weight of 102 carats - about 200 times the mass of a diamond used in a typical engagement ring. Note when looking at total diamond weight, some of the online stores such as blue nile will give a total diamond weight for a pair of stud earrings, but the actual total diamond weight will only approximately be what is specified - check the fine print to avoid being caught out.
So how good do you think a 10 carat diamond which looks a horrible uneven black colour would appear on an engagement ring? Exactly - diamond buyers need to also consider other properties such as the colour of the stone, which is not picked correctly can negate any attractiveness of having a very large diamond.